Polymer-Based Amperometric Biosensors

1996 ◽  
pp. 297-328 ◽  
Author(s):  
Emmanuel I. Iwuoha ◽  
Malcolm R. Smyth
Keyword(s):  
Amperometric Biosensors

Computer Simulation of the Response of Amperometric Biosensors in Stirred and non Stirred Solution

2003 ◽  
Vol 8 (1) ◽  
pp. 3-18 ◽  
Author(s):  
R. Baronas ◽  
F. Ivanauskas ◽  
J. Kulys
Keyword(s):  
Mathematical Model ◽  
Computer Simulation ◽  
Finite Difference ◽  
Mass Transport ◽  
Enzyme Reaction ◽  
Analyte Concentration ◽  
Amperometric Biosensors ◽  
Finite Difference Technique ◽  
Enzyme Layer ◽  
Biosensor Response

A mathematical model of amperometric biosensors has been developed to simulate the biosensor response in stirred as well as non stirred solution. The model involves three regions: the enzyme layer where enzyme reaction as well as mass transport by diffusion takes place, a diffusion limiting region where only the diffusion takes place, and a convective region, where the analyte concentration is maintained constant. Using computer simulation the influence of the thickness of the enzyme layer as well the diffusion one on the biosensor response was investigated. The computer simulation was carried out using the finite difference technique.

Catalytic properties of variously immobilized mushroom tyrosinase: A kinetic study for future development of biomimetic amperometric biosensors

2020 ◽  
Vol 864 ◽  
pp. 114066 ◽  
Author(s):  
Milan Sýs ◽  
Michaela Obluková ◽  
Viliam Kolivoška ◽  
Romana Sokolová ◽  
Lucie Korecká ◽  
...  
Keyword(s):  
Kinetic Study ◽  
Future Development ◽  
Catalytic Properties ◽  
Mushroom Tyrosinase ◽  
Amperometric Biosensors

scholarly journals AMPEROMETRIC BIOSENSORS BASED ON BIOCATALYST ELECTRODES. MEDIATED AND MEDIATORLESS ENZYME ELECTRODES

1991 ◽  
Vol 7 (Supple) ◽  
pp. 1443-1446 ◽  
Author(s):  
TOKUJI IKEDA ◽  
SYUJI MIYAOKA ◽  
SITYOGO OZAWA ◽  
FUMIO MATSUSHITA ◽  
DAISUKE KOBAYASHI ◽  
...  
Keyword(s):  
Amperometric Biosensors ◽  
Enzyme Electrodes

scholarly journals Amperometric Biosensors Based on Direct Electron Transfer Enzymes

Molecules ◽  
2021 ◽  
Vol 26 (15) ◽  
pp. 4525
Author(s):  
Franziska Schachinger ◽  
Hucheng Chang ◽  
Stefan Scheiblbrandner ◽  
Roland Ludwig
Keyword(s):  
Electron Transfer ◽  
Electrode Materials ◽  
Direct Electron Transfer ◽  
Accurate Determination ◽  
Direct Electrochemistry ◽  
Product Analysis ◽  
Amperometric Biosensors ◽  
Chemical Surface ◽  
Fusion Enzymes ◽  
Cost Efficient

The accurate determination of analyte concentrations with selective, fast, and robust methods is the key for process control, product analysis, environmental compliance, and medical applications. Enzyme-based biosensors meet these requirements to a high degree and can be operated with simple, cost efficient, and easy to use devices. This review focuses on enzymes capable of direct electron transfer (DET) to electrodes and also the electrode materials which can enable or enhance the DET type bioelectrocatalysis. It presents amperometric biosensors for the quantification of important medical, technical, and environmental analytes and it carves out the requirements for enzymes and electrode materials in DET-based third generation biosensors. This review critically surveys enzymes and biosensors for which DET has been reported. Single- or multi-cofactor enzymes featuring copper centers, hemes, FAD, FMN, or PQQ as prosthetic groups as well as fusion enzymes are presented. Nanomaterials, nanostructured electrodes, chemical surface modifications, and protein immobilization strategies are reviewed for their ability to support direct electrochemistry of enzymes. The combination of both biosensor elements—enzymes and electrodes—is evaluated by comparison of substrate specificity, current density, sensitivity, and the range of detection.

Carbon fibres as electrode materials for the construction of peroxidase-modified amperometric biosensors

1993 ◽  
Vol 273 (1-2) ◽  
pp. 59-70 ◽  
Author(s):  
Elisabeth Csöregi ◽  
Lo Gorton ◽  
György Marko-Varga
Keyword(s):  
Electrode Materials ◽  
Carbon Fibres ◽  
Amperometric Biosensors

Non-steady-state processes in amperometric biosensors: modelling studies

2002 ◽  
Vol 51 (1) ◽  
pp. 38
Author(s):  
A Mashirin ◽  
K Tammeveski ◽  
T Tenno ◽  
S Velling
Keyword(s):  
Steady State ◽  
Amperometric Biosensors ◽  
Modelling Studies

Directed enzyme deposition via electroactive polymer-based nanomaterials for multi-analyte amperometric biosensors

2012 ◽  
Author(s):  
Rajtarun Madangopal ◽  
Matthew Stensberg ◽  
Marshall Porterfield ◽  
Jenna Rickus ◽  
Nicholas Pulliam
Keyword(s):  
Electroactive Polymer ◽  
Amperometric Biosensors
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